This is for 1+ Alarm Controls 600D assemblies.  They came from the parts inventory of a door company that closed.  One assembly is unused but one of the screw holes that hold one of the covers in place needs to be addressed.  When I got it the head of the screw that holds the small cover in place was broken off.  I was able to drill a hole in the screw and insert a LH drill bit but when I put power to the bit it snapped off and now it may require an alternate way to hold the small cover in place.  Other than that, the assembly is new.  The second assembly is missing the main part but has 2 new magnets that attach to the doors and 2 bags of hardware.  Please check out all of the photos for what is included.  If you are good at improvising, this would be a good deal for you.